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中国农学通报

中国农学通报 ›› 2007, Vol. 23 ›› Issue (1): 212-212.

所属专题： 水稻； 马铃薯

• 目次 • 上一篇    下一篇

磷钾肥对稻草覆盖免耕秋马铃薯产量及主要农艺性状的影响

周春军,李首成,孙园园,李 杨,王 鹏   

  • 出版日期:2007-01-05 发布日期:2007-01-05

Effects of Different Quantity of Potassium and Phosphorus Application on Yield and Main Agronomic traits of Straw-covering and No-tillage Autumn Potato

Zhou Chunjun, Li Shoucheng, Sun Yuanyuan, Li Yang, Wang Peng   

  • Online:2007-01-05 Published:2007-01-05

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551

摘要： 为了明确在四川盆地生态条件下,不同钾肥和磷肥施用量及品种对稻田覆盖秋马铃薯产量及主要农艺性状的影响，采用混合型正交表（L84×24）进行了正交试验，供试材料为米拉和川芋5号。结果表明：不同钾肥和磷肥水平间，均对块茎产量有显著差异，达0.01显著水平，对地上部干物重、株高、茎粗及根系干物重均无显著差异；不同品种间，对块茎产量无显著差异，但对地上部干物重、株高、茎粗及根系干物重有显著差异，达0.01显著水平；试验表明，在四川盆地生态条件下，稻田覆盖秋马铃薯栽培技术中，施钾肥315kg/hm2，磷肥270kg/hm2，米拉品种产量可达24015 kg/hm2。

关键词: 农产品, 农产品, 成本动因, 农业经营规模, 农业经营形式, 农业生产结构

Abstract: n order to understand effects of different quantity of the potassium and phosphorus application and varieties on yield and main agronomic traits of straw-covering and no-tillage autumn potato in the ecological conditions of the Sichuan Basin, An orthogonal experiment with the mixed orthogonal table （L84×24） was carried out, the Mira and ChuanYu-No.5 were used as the planting materials. The results showed that the tuber yields have a significant difference among different treatment of the potassium and phosphorus application. It reached 0.01 significance level. The dry weight of Up-ground parts, height, diameter of stem and the dry weight of root did not show significant difference. But the tuber yield did not show significant difference among different treatment of varieties, and the dry weight of Up-ground parts, height, diameter of stem and the dry weight of root showed a significant difference among different treatment of varieties. It also reached 0.01 significance level. The experiment showed that when quantity of the potassium and phosphorus application were 315kg/hm2 and 270kg/hm2 , the yield of Mira could reach 24015kg/hm2 in the ecological conditions of the Sichuan Basin.

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